Today I ran into this: Invalid gemspec in [/usr/local/rvm/gems/ruby-1.9.3-p194/specifications/ZenTest-4.9.3.gemspec]: Illformed requirement ["< 2.1, >= 1.8"]. You need a newer Rubygems version. Try...
CSS support in major e-mail clients is horrible. This will give you an overview what you will not be...
Insanely detailled guide about controlling copy & paste behavior using web technology in 2015. Note that you can now trigger a...
Small web application where you can upload an image (PNG, JPEG, GIF) and generate a base64-encoded version of it...
Rails comes with grouped_collection_select that appears to be useful, but isn't. As an alternative, consider the flat...
If you're supporting IE9+, you can listen to input to see if a text field changes. Other than change...
The differences are subtle. You probably want to use Time, except when you want to use DateTime. See the attached...
Note: ActiveRecord::Base#becomes has a lot of quirks and inconsistent behavior. You probably want to use ActiveType.cast instead.
To disable the mostly useless automatic suggestion popups in RubyMine, go to File / Settings, then to Editor / General / Code Completion...
Starting from 4.1, Rails automatically detects the inverse of an association, based on heuristics. Unfortunately, it does not seem to...
There is no such thing as a "default order" of rows in database tables. For instance, when you paginate a...
HTTP/2 will make our applications faster, simpler, and more robust—a rare combination—by allowing us to undo many of...
WebRTC HTTP/2 is here, let’s optimize! or, why (some) yesterday's best-practices are today's HTTP/2 anti-patterns...
Surprisingly exhaustive new icon set by Google. Available as PNG, SVG and as a icon font. Comment from Henning
Since version 2.6 exception notifier distinguishes between foreground and background sections. The reason is that with background jobs (e.g. methods...
Good article about ruby singleton classes.
ActiveModel supplies an errors object that behaves similar to a Hash. It can be used to add errors to a...
Developing complex regular expressions quickly blows my mind. Here are some online regex editors that help you by highlighting matching...
Note: Making a reverse proxy with nginx is much more straightforward. A reverse proxy is a "man in the middle...
When you register a delegated event using on (or the deprecated delegate / live), it is somewhat hard to manually trigger...
All major browsers (IE8+, FF3.5+, Safari 4+, any Chrome) support sessionStorage, a JavaScript storage object that survives page reloads and...
TLSv1 128 bits ECDHE-RSA-AES128-SHA SSL Certificate: Version: 2 Serial Number: -18446744073709551615 Signature Algorithm: sha256WithRSAEncryption Issuer: /C=BE/O=GlobalSign nv-sa/CN=GlobalSign Domain Validation CA - SHA256...
If you have FactoryGirl traits like this: factory :movie do title 'Sunshine' year 2007 trait :vintage do year 1951
Please don't use the horrible datetime_select helper. It has a terrible UI. Always prefer to use a visual...